Tuesday, 26 March 2013

Lesson summary 26/3 Shaun Ng

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Quadratic inequalities: 
Step 1: Find roots (by factorising)
Step 2: Sketch and include x-intercept (roots)
Step 3: Check sign, <0 answer is part below x-axis
           >0 above x axis

Practice QNs Answers p26 - p29 below


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